Rate of flow is necessary in determining a filter's corrected differential pressure in a fuel system as required by the A4A-103, the U.S. Airline Fueling Standard. The design of the Gammon FR Meter is based upon the reliable Gammon Gauge and developed...

Gammon Tech's API/EI/IP-1584 4-foot hydrant pit valve adapter wear gauge ensures that your hydrant pit valves do not have excessive wear. The unique (patented) design combines three areas of wear into one single measure, making it easy to use. Includes...

Know the worst pressure drop your filters have experienced! The Gammon Gauge records the highest reading until reset. Retrofits are available for all Gammon Gauges except ones with bottom mount switch.